Abrading – Precision device or process - or with condition responsive... – Computer controlled
Patent
1997-09-24
2000-09-05
Eley, Timothy V.
Abrading
Precision device or process - or with condition responsive...
Computer controlled
451 8, 451 52, 451 53, 451 57, 451 61, B24B 4900, B24B 5100
Patent
active
061134619
ABSTRACT:
In order to eliminate a delay in a driving system and a control system during sequential operation of various component parts, to thereby realize a high speed and easy multi-axis control, a work delivery and removing device (7), a grindstone retracting device (14) and a gauge retracting device (19) are driven by respective compact electric motors (15, 13, 18) through associated reduction gear units. A reference pulse generator (34) for sequencers for generating reference pulses is provided, which reference pulses are distributed by a pulse distributor (35) to various position change curve setting units (36A, 36B, 36C). The position change curve setting units (36A, 36B, 36C) are a so-called electronic cam and output in response to receipt of the corresponding reference pulses respective position commands representative of predetermined position change curves (a, b, c). Servo-controllers (37A, 37B, 37C) are used for controlling the electric motors (15, 13, 18) in response to these outputs.
REFERENCES:
patent: 3822516 (1974-07-01), Huber
patent: 5129188 (1992-07-01), Alverio
patent: 5405285 (1995-04-01), Hirano et al.
patent: 5439330 (1995-08-01), Bayer et al.
Hotta Yuzo
Ichikawa Masatoshi
Kuwahara Shinji
Nakano Takahiro
Ohashi Takehiro
Eley Timothy V.
NTN Corporation
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